Float valve



July 5, 1938.

A. J. LIPPOLD FLOAT YALVE Original Filed Feb. 23, 1935 LJW BY 2 Z KTTORNEY'S Patented July 5, 1938 Original applic corporation 7,742. Divided and Adolph J. Lippold',. Milwaukee,

Cherry-Burrell' Corporation, Chicago,

ation February 23,

Wi's'., assignor to 1935, SerialNo. this application July 11,

1936, Serial N0. 90,101

6 Claims.

This invention pertains to float valves. The present application is a division of my application Serial Number 7,742, entitled Bottle filling mechanism and filed One of the objects of the vide a float valve in February 23, 1935.

invention is to prowhich a bell surrounding the valve ports or encircling the supply tube serves as a float, the valve connected with said bell to by the buoyancy to be moved downwardly by comprising a sleeve be moved upwardly of air trapped in the bell and gravity.

It is a further objector the invention to provide a novel and improved valve structure in which a slide valveis provided with two seats simultaneously engageable supply port in the at each side of the closed position of the valve,

whereby flow is positively cut off without requiring that the parts operation uncertain.

The drawing shows through a valve embodying The supply tube with a fitting which ingly beveled seats at fit so tightly as to make the a view in axial section this invention.

4 is provided at its lower end provides two correspond- 6 and 1 respectively, and

has apertures 8 between said seats for the control discharge of material supplied through pipe 4.

Engaged upon an interior shoulder in the fitting 5 is the closure 9 which is preferably so shaped as to direct the supplied material through the ports 8. Near its lower an annular exterior which a spring wire a stop.

Co-acting with the fitting peripheral II is engaged to function as end the fitting 5 has groove at II) in -5 is the valve sleeve l5 which slides externally in a vertical direction upon fitting 5 and has seats 'mentary to the seats it the valve sleeve ports 18 which, in the open 6 and E. It is provided with escape at I6 and I1 comple- Above the seats position of the valve as shown in the drawing, may register with the ports 8. It will, however,

be noted that the ported portions of'fitting 5 and sleeve [5 are spaced apart at a depth of the valve seats 6 The annular space distance equivalent to the and I6, respectively.

thus provided between the sleeve and the fitting provides communication between ports 8 and nularly rotated so registry.

By way of a ries a bell 20 in which air lower margin of the bell is l8 even if the sleeve is anthat the ports are out of float the sleeve I5 preferably caris trapped when the immersed in a container in which liquid is to be kept at a constant level. In the companion a pplication above referred to, bottle filling apparatus to maintain milk at chamber from which I have shown the invention used in wherein the valve serves a constant level in a supply the bottles are filled. This is just one service to which the invention may be I put, and foruse with milk, it is noteworthy that the construction disclosed is removing the retaining ring or may readily be disassembled and pletely exposed for cleaning.

such that by simply stop II, the parts rather com- In this particular construction, the organization is comp-act and the liquid is entering the chamber at substantially the same level as the bell.

ports 8 and 18, it will be obvious Since the bell encloses or surrounds the that the liquid entering through these ports might entrain or absorb the air in the bell to change its level of flotation ifthe discharge were permitted to occur freely through the ports into the area of the bell.

To avoid this, I prefer bafile 2| which is connected with to provide the annular the sleeve l5 and closely spaced adjacent to the sleeve and well within the periphery of bell downwardly the effluent from permitting such effluent interior of the bell.

I claim:

20 to guide ports l8 without 0 to spray throughout the j 1. In a valve, the combination with a supply pipe provided end, said pipe series of at least cylindrical bearing with means closing the ameters progressively reducing toward the closed end of the pipe, of a sleeve valve having differentially diametered bearing portions complementary to the bearing surfaces of the pipe and. in sliding contact thereon, said valve being ported to aiiord communication through the opening of said pipe with the interior open, a float thereof when said valve is carried by said sleeve valve for unitary movement therewith and to receive guidance from said pipe, and releasable means for securing said valve against removal from said pipe, said valve and float being unitarily freely removable from said pipe on release of said means.

2. The combination with a pipe a closed end and with means providing a series of three external bearing surfaces of substantially cylindrical form and differential diameters progressively decreasing toward the the pipe, said means closed end of being apertured through an intermediate portion of the central bearing surface, said means also providing valve seat shoulders between the central bearing surface and the other bearing surfaces, both or s aid shoulders pipe at its having a lateral opening and a 9 three external substantially surfaces of differential diprovided with being spaced from the aperture in the central bearing surface, of a valve sleeve having interior bearing surfaces complementary to those of said means and in sliding bearing engagement therewith, said sleeve also having valve seat shoulders complementary to the shoulders of said means and engageable therewith at one extreme position of movement of said sleeve respecting said pipe,

the largest diametered bearing surface of said an aperture adapted sleeve being provided with to afford communication through said first mentioned aperture to said pipe when said sleeve is displaced substantially from said position, and means for releasably limiting the movement of said sleeve on said pipe, said sleeve being freely removable from said pipe upon release of said last mentioned means,

3. In a device of the character described, the combination with a suspended pipe, of an internally shouldered fitting mounted at the lower end of the pipe and provided with a lateral opening above the shoulder, a closure seated on the shoulder and including means for deflecting flow from said pipe through the aperture,'a series of substantially cylindrical bearing surfaces on the exterior of said fitting progressively decreasing in diameter to and beyond said closure, there being at least three such surfaces and said aperture being disposed intermediate the ends of the sec ond largest surface, tapered valve seat shoulders betweenthe successive bearing surfaces, a valve sleeve having interior bearing surfaces and intervening valve seat shoulders complementary to those of a fitting and provided with an aperture in its bearing surface of largest diameter, the second largest interior bearing surface of the sleeve being adapted to maintain said ports substantially closed against communication after initial separation of the shoulders of the sleeve and fitting respectively, and means operatively connected with said sleeve for displacement thereof sufliciently to afford communication between said apertures and the interior of said fitting.

4. In a device of the character described, the combination with a suspended pipe, of an internally shouldered fitting mounted at the lower end of the pipe and provided with a lateral opening above the shoulder, a closure seated on the shoulder and including means for deflecting flow from said pipe through the aperture, a series of substantially cylindrical bearing surfaces on the exterior of said fitting progressively decreasing in diameter to and beyond said closure, there being at least three such surfaces and said aperture being disposed intermediate the ends of the second largest surface, tapered valve seat shoulders between the successive bearing surfaces, a valve sleeve having interior bearing surfaces and intervening valve seat shoulders complementary to those of a fitting and provided with an aperture in its bearing surface of largest diameter, the second largest interior bearing surface of the sleeve being adapted to maintain said ports substantially closed against communication after inital separation of the shoulders of the sleeve and fitting respectively, means operatively connected with said sleeve for displacement thereof sufficiently to afford communication between said apertures and the interior of said fitting, said fitting and sleeve having interengageable means releasably limiting relative movement therebetween in the direction in which the bearing portions of said fitting reduce in diameter, said sleeve being freely removable from said fitting upon release of said last mentioned means.

5. In a device of the character described, the combination with a supply pipe having first, second, and third bearing surfaces of progressively increasing diameter and shoulders between said surfaces constituting annular seats, said pipe having a port in the second of said surfaces, of a valve sleeve having complementary seats and first, second, and third portions with surfaces complementary to and slidable upon the surfaces of the supply pipe, said sleeve being ported in its third portion, and float means having an annular top surrounding and connected with said third said float means being protected by the bearing engagement of said third sleeve portion upon the third bearing surface of the pipe from overflow across said top.

6. In a device of the character described, the combination with a supply pipe having first, second, and third bearing surfaces of progressively increasing diameter and shoulders between said surfaces constituting annular seats, said pipe being ported in the second of said surfaces, of a valve sleeve having complementary seats and first, second, and third bearing portions with bearing surfaces complementary to and slidable upon the surfaces of the supply pipe, said sleeve being ported in its third portion, a float com prising an inverted cup surrounding said sleeve and connected to said third bearing portion above the port therein and protected by said third bearing surface against over-run of liquid from said pipe, and a baflie within the cup opening downwardly from a point above the port of said sleeve.

ADOLPI-I J. LIPPOIJ). 

